Answer:
439822.95 cm²
Step-by-step explanation:
The radius of a cylindrical garden roller is 70 cm and its length is 2 m. How much area will it cover in 5 revolutions?
The formula to solve the above question is given as:
Area covered = Curved surface area × Number of revolutions
Step 1
We find the curved surface area of the cylindrical garden
Area = 2πrh
r = 70cm
h = 2m
Convert height to cm
1m = 100cm
2m = x
Cross Multiply
x = 2 × 100 cm = 200cm
Hence,
Area = 2 × π × 70 × 200
= 87964.59cm²
Step 2
Area covered = Curved surface area × Number of revolutions
= 87964.59cm² × 5 revolutions
= 439822.95 cm²
Answer:
3x - 23 = 28
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
Step 1: Convert to math
2 times 4 = 2 x 4
Step 2: Multiply
2 x 4 = 8
This is the same as 2 x 2 x 2 or 2³
Answer:
m < C = 60
...........
Step-by-step explanation:
m < B = m < E = 70
m < C= 180 - ( 70+50 ) = 60
20% is the the probability of a person taking the servey